Electric gas-igniting device.



H. JAMESON.

ELECTRIC GAS IGNITING DEVICE.

APPLIGATION FILED JUNE 17,1908.

Patented Aug` l?, 1909.

Hauff@ .fa/magm @wird @one HENRY JAMESON, OF JOPLN, MISSOURI.

Specification of Letters Patent.

Patented Aug. 1'?, 1909.

.ipplication tiled June 17, 19%. Serial No. fl.

To all whom it may conce-m: A

13e 1t known that l, HENRY JAMESON, a

citizen of the United States of America, re-

siding atdoplin, in the county of Jasper and `:State ot Missouri, haveinvented new and useful Improvements in Electric Gas-Igniting Devices,of which the following is a specification.

rThis invention relates to gas igniting devices adapted for use inconnection with gas stoves, gas lighting burners, explosive en gines andthe like.

The invention has for one of its objects to improve and simplify theconstruction and operation of apparatus of this character so as to becomparatively simple and inexpensive to manufacture, and reliable andefficient in use.

Another object ot the invention is the provision ot a jump sparkvignition system in which the primary and secondary circuits arenormally open and are adapted to be simultaneously closed byelectro-magnetic ally-operated switches, the circuits of which areclosed when the system is to be thrown into use.

With these objects in view, and others as will appear as the inventionproceeds, the invention comprises the various novel eatures ofconstruction and arrangement ot parts which will be more fully describedhereinafter and set forth with'particularity in the claims appendedhereto.

in the accompanying drawing which illustrates one of the embodiments ofthe invention r-Figure 1 is a diagrammatic View ozt the system adaptedfor stovev and lamp lighting. Fig. 2 isa sectional view ot' one of theelectro-magnetically-actuated switches. Fi 3 is a side view thereof.Fig. 4 is a'detall view of one of the jump spark igniting devices.

Similar reference characters refer to similar parts throughout thevseveral views.

Referring to the drawing A designates an illuminating burner of theupright mantle type and B a burner for a gas stove, both burners beingprovided with a jump spark ignition device C. This ignition devicecomprises in the present instance a platinum wire or other electrode 1vwhich has its free end formed into a terminal 2 that is presented toslidably separate from the metal electrode 3. rThe electrode 3 is in theform of a screw that is threaded in an opening 4 in a support 5 of hardrubber or other insulating material, the screw being adjustable towardor away from the terminal of the electrode 1 so as to adjust the sparkgap. rilhe electrode 1 is secured to the support-ing piece or base 5- bya bolt 6 that serves as a binding post for connecting the said electrodein the high tension circuit. rlhe screw 3 is so arranged as to connectthe base plate 5 of the sparking device to the burner.

rEhe burner A has a pilot tube 7 that passes through the screw 3 and thespark ignites the gas passing through this tube so that the dame willignite the gas issuing through the mantle. In the case of the burner Bthe screw 3 is secured in one of the jet apertures 8 in the top plate ofthe burner so that the gas issuing through the screw will be ignited bythe spark produced by the device C.

The current for the primary circuit is derived from a battery l) orother suitable source and one side of the battery is connected by a wire5) to the primary winding of a vibrating coil E. Between the otherterminal of the coil and battery are wires 10 and 11 which are adaptedto be connected by an electro-magnetically-actuated switch designatedgenerally by l?. The secondary i circuit consists of a wire 12 connected'wit one terminal of the secondary winding of the coil n nd whichdivides into two branches 13 and 14 that lead to the electrodes 1 of thesparking devices C While the other terminal of the secondary winding isconnected to ground at 15 by the wire 1G. ln the wires 13 and 14 areelectromagneticallyactuated switches G. rlhe electrodes E of thesparking' device are electrically connected with 'the burners which arein turnconnected to ground so as to complete thesecondary circuit.

Each electromagnet comprises a core 17 of soft iron or other magneticmaterial on which is wound the coil 18 which is inclosed in a casing 19,there being a cover 2O of insulating material through which the polarextremity 21 of the core extends. Attached to the casing and'disposedover the core is an amature 22 which has sui'iicient resiliency to benormally separated from the core and on the armature 1s a strip ofinsulation 23 which, in the present case of the switch F, carries acontact 23and isadapted to engage with a stationary contact 25 on the.plate of insulation 20. The wire 10 of the primary circuit connectswith the contact 25 while the wire 11 connects with the contact 24 andwhen the electro-magnet is energized the contacts will be broughttogether so as to complete the primary circuit. The windings ot the coil18 of the switch F are connected with binding posts 26 and 27 Fig. l,the former of which is connected by a wire 30 with a battery 3l that inturn is connected y to ground byl the wire 32. The switches G forcontrolling the secondary or high tension circuit are each providedwith'spaced contacts 33 and 34; with which the wires 13 and 14 areconnected and the armature carries a bridging metal piece 35 that isadapted to engage both contacts 33 and 24: so as to complete thecircuitthrough either wire 13 or 14. The windings of the coils oi theswitches Gr are coimected with the binding posts 36 and 3T and thesecoils are connected in series with the coil of the switch F by thebranch wires 3&5 that connect with the binding posts 3G Iwhile thebinding' posts 3T are connected by wires 39 with the burners or gaspipes which are themselves grounded, there being included in the wires39 push buttons l() whereby the vcontrolling circuitof themagnetically-actuated switches are manually closed.

lIn lpractice tliesupply of gas to the burner A is turned on by openingthe valve at the same time the push button 40 is depressed so as to senda current simultaneously through the coils of the switch F and theswitch Gr for the burner A. `By this means the primaryand secondarycircuits are simultaneously closed so that an intermittent current will-be produced in the primary winding of the induction coil E, whereupon ahigh tension intermittent current will be produced in the secondarycircuit for creating a succession of sparks across the spark gap betweenthe electrodes 1 and 3 ot the sparking device C to thus insure thelighting of the burner A. When it is desired to ignite the stationaryburner B the switch 40 at such burner is closed so as to energize theelectro-magnets that control the primary and secondary circuits of thesystem for producing sparks applied to the burner B. i

From the foregoing description taken in connection with the accompanyingdrawing the advantages of' the construction and method of operation willbe readily apparent to those skilled in the art to which thel inventionappertains and while I have described the principle of operation of theinvention, together with the apparatus which I now consider'to be lthebest embodiment thereof, I desire to have it understood that theapparatus shown is merely illustrative and that such changes may bemadewhen desired as are within the scope of the claims.

Having thus described the invention7 what is claimed as new is l. Thecombination of a jump spark ignition device, a secondary circuitconnected therewith, a primary circuit including a source of current, aninduction coil in the circuits, normally open switches in both circuits,an electro-magnet for each switc a controlling circuit in which both'electromagnets are connected, a source of current connected incontrolling circuit o the elecl tro-magnets, and a manually actuatedswitch i'or closing the circuit of the electro-magnets to close the saidnormally open switches si# multaneously.

2. The combination of a plurality of ump spark ignition devices, aprimary circuit, secondary circuits for the said devices, and

-inductively related to the primary circuit,

an electrically actuated switch for closing the primary circuit, anelectrically actuated switch for each secondary circuit, and means y forsimultaneously-actuating the first mentioned switch for closing theprimary. and one of the secondary circuits.

3. A jump spark ignition device comprising anelectrode, a supportingmember there-y for,l and a second electrode on the member spaced fromthe rst electrode and serving 'as means for securing the device inposition.

t.l A jump spark ignition'device comprising a supporting piece ofinsulatingmaterial,l .a spaced electrode mounted thereon, one electrodebeing in the form of a 'screw serving to attach the device to a supportandl having an opening through which gas to be ignited is adapted toissue.

In testimony whereof I afivixmy signature` in presence of two witnesses.

HENRY JAMESON." Witnesses:

BESSIE TULLEY, BYRON H. Coon.

